Home / 1,997,570-2,756,696.52-1,212,645.20

Finding the Fourth Proportional to 1,997,570, 2,756,696.52 and 1,212,645.20

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Solution

The fourth proportional to 1,997,570, 2,756,696.52 and 1,212,645.20 is: 1,673,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,570 : 2,756,696.52 = 1,212,645.20 : x
  2. Step 2: Convert to fraction form
    1,997,570/2,756,696.52 = 1,212,645.20/x
  3. Step 3: Cross multiply
    1,997,570x = 2,756,696.52 × 1,212,645.20
  4. Step 4: Simplify right side
    1,997,570x = 3,342,894,802,834.70
  5. Step 5: Solve for x
    x = 3,342,894,802,834.70/1,997,570
  6. Step 6: Final answer
    x = 1,673,480.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.